There are only one siege cannons of two types, super heavy siege mortars of more than 15,000 kilograms and super heavy siege cannons of more than 12,000 kilograms of super heavy siege cannons, because the casting process of these super giant cannons is very complicated, especially the cannons. To cast such a large heavy cannon, it is naturally impossible to use sand or iron molds that can be reused. Only one can be used for single-use mud molds, which are a great test for the technology of smelting steel and casting cannon technology. Therefore, these two types of super giant cannons have only one. If they are built more, it will cost too much silver; and the other is that these giant cannons have no other uses except siege.

It is not easy to carry two giant cannons ashore from the ship.

No gun mount with wheels can withstand the strong recoil force of these giant cannons when firing, so this giant cannon itself does not have a cannon car, but only a cannon stand. The appearance of the heavy cannon looks like an enlarged version of the Red Barbarian cannon; the appearance of the mortar cannon looks like an enlarged version of the mortar cannon with a huge base.

While transporting the giant cannons, the transport ship also transported the super heavy winch. Each super cannon requires four winches to serve.

The engineer soldiers first moved the super heavy winch off the ship, then pushed it to the transport ship that transported the giant cannon. Several soldiers pulled the rope, slowly raised the iron hook of the winch, then turned the boom, and slowly extended the boom to the top of the transport ship.

"Tie the iron chain to the cannon." Liu Laogen shouted.

The engineers quickly tied the iron chain to the cannon barrel of the giant cannon. After binding it, they checked whether the iron chain was broken. Then someone pulled the winch winch and tried whether it was strong. Then Liu Laogen ordered: "Okay, pull up the cannon!"

The two winches started at the same time. The soldiers pulled the winch and slowly pulled the barrel from the gun stand. When the gun body was away from the gun stand for a distance, dozens of soldiers pushed the winch, causing the winch that was holding the giant cannon to retreat little by little, leaving the side of the ship. At this time, the two winches were pushed up, lifted the gun stand, and sent it to the shore. Then the winch that was holding the gun body began to slowly lower the gun body and put the giant siege cannon on the gun stand steadily.

Compared with the siege cannon, it is more troublesome to lift the giant siege mortar. The cannon body and the cannon stand of the giant siege cannon are integrated. In order to facilitate lifting, four ears were cast on the iron cannon stand of the siege mortar.

The four winches were pushed to the edge of the transport ship simultaneously. The engineers slowly lowered the hook. The engineers on the ship hung the hook on the ears of the mortar cannon seat. The dozens of soldiers on the four winches rotated the winch simultaneously and worked in the pulley group. The hook slowly lifted the giant cannon into the air.

"Get out slowly!" Liu Laogen shouted.

Each winch was served by more than a dozen soldiers, and fifty-two soldiers pushed four winches simultaneously and pushed the winches away from the dock.

"Put down the cannon." Liu Laogen shouted.

Wooden boards were laid on the ground, and logs were placed on the boards. Both guns were placed on the logs by soldiers. These wooden boards and logs were laid from the dock to the location of the artillery position.

After the giant cannon was put down, the soldiers pushed the cannon and rolled on the log, slowly pushing the giant cannon to their launch position.

The launching position of the super siege cannon is three miles away from the Ganzhou city wall and is outside the range of the defending cannons. However, in order to ensure that everything is foolproof, the Huai Army still piled up several sand batons in front of the giant siege cannon to prevent possible artillery attacks by the opponent.

When two giant siege cannons were easily sent to the artillery position, twelve twelve-pound field cannons and various other field cannons had long been arranged on the artillery position. The twelve-pound field cannons are not light, and the gun body and the gun frame weigh more than 3,000 kilograms. However, these cannons have gun chariot frames, and the most advanced rolling bearings are installed on the wheels of the cannon trucks, and the wheels are covered with a layer of Eucommia glue, so transportation is much simpler.

It is very troublesome to load shells with two giant siege cannons and takes a lot of time.

The barrel of the mortar is short, but the shells are too heavy. The shells need to be lifted with a winch to load the shells into the barrel. The huge stone shells are loaded in the large net bag. After the gunners loaded the gunpowder, they lifted the net bags in the winch, then hang the shells to the muzzle, and then slowly lowered the shells. When the shells touched the muzzle, the engineer soldiers cut the net bags and the gunner stuffed the shells into it with force.

In order to allow heavy shells to enter the barrel, someone simply stood on the shells and kicked them with his feet. It took a long time to stuff the shells into the barrel.

The shells of heavy siege cannons are much lighter than those of mortar cannons, only 64 pounds, but the barrel length is much longer, so loading a fixed loading bag is very troublesome.

The gunners placed the fixed charge pack in the muzzle and then pushed it into it with the pushing rod. The length of the giant cannon's barrel reached three and six feet, and the pushing rod was directly a thick log. More than ten people needed to hold the pushing rod to put the fixed charge pack in.

After loading the set charge pack, the two gunners raised a shell and walked to a high platform placed at the muzzle, stuffed the shell into the muzzle. Then more than a dozen gunners worked together to hold a thick log and pushed the shell into the depths of the barrel with panting.

After the two giant cannons were loaded, the engineer pushed away the two platform cars placed at the muzzle. Then the gunner stabbed the iron cone through the fire door, pierced the medicine bag, and then inserted it into the drug guide tube. In this way, the two giant cannons were loaded and they could open fire with just a command to fire.

Li Guodong took out his pocket watch and took a look at the time. The loading time was about forty minutes, which was still the first time to load. If one round of firing was completed, the barrel of the gun was cleaned and the barrel was cooled down, and the loading time would be longer. It would probably take half an hour, or an hour to load.

"Is the firing rate of a shell too slow in half an hour?" Wang Quan asked.

Li Guodong pointed to the city wall in front and said, "Okay, although the loading is slow, these two cannons will probably be able to blow the city wall out after one day. If the twelve-pound cannons that are fast loading, it may be difficult to blow out after four or five days."

Although the loading speed of the siege cannon is very slow, the power of a single shell is incomparable to that of the Red Cannon and the Field Cannon. If it is a city wall that is not very strong, such as Tucheng, the shell will collapse in one round; even a strong city like Xiangyang and Nanjing can only be bombarded for one day, and a gap can be opened in the city wall.

Although the siege cannons have been loaded, Li Guodong did not order the siege cannons to fire, but instead let the shield chariot formation protect the infantry to advance towards the city wall.

Twelve twelve-pound field cannons, thirty-six six-pound field cannons, eight twelve-pound howitzers, more than one hundred three-pound field cannons, as well as various mortar cannons, general cannons, and Flang machines, a total of more than five hundred cannons aimed at the city walls.

In the Huai Army formation, war drums rumbled and horns were noisy. More than 300 shield chariots were arranged in neat formations, pushing out from the formation and slowly approaching the Ganzhou city wall. Behind the shield chariot array, followed by three thousand elite warriors including the Eight Banners Captive Cannon Fodder Team, the old camp soldiers of the Zhongzhen Camp, the Huai Army's iron armored soldiers, and fifty guard tower cars with scattered soldiers standing on it, slowly approaching the city wall.

Gao Jinku, who was standing at the head of Ganzhou, saw the Huai Army shield chariot array pushing up, and he shouted anxiously: "Li thief is coming! Brothers, prepare to fire!"

The renovated Ganzhou city wall can be said to be as solid as a soul. Gao Jinku also imitated the Huai Army and built a number of hollow bastions and enemy platforms on the city wall, as well as built-in turrets, which had fierce firepower and strong defense. In order to strengthen the protection of his own artillery, Gao Jinku also piled sandbags in front of each cannon position.
Chapter completed!